Vehicle System Interface Module (Vsim) Module - Electrical Diagnostics: Other Dodge Charger VI

WHEN MONITORED

With the ignition switch on.

SET CONDITION

The Vehicle System Integration Module (VSIM) has detected the Fuel Level Status Signal circuit below a calibrated value.

POSSIBLE CAUSES

Scheme 496

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS Using the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Go to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) and perform the appropriate diagnostic procedure. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) Using the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. Using the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out or corroded terminals and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W538) FUEL LEVEL STATUS SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W538) Fuel Level Status Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W538) CHECK THE FUEL LEVEL STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W538) Fuel Level Status Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 Ohms? Yes Repair the (W538) Fuel Level Status Signal circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller and repair or replace the aftermarket light/siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires or damaged connectors and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated and repair any obvious problems. Is DTC P1462-FUEL LEVEL OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Fuel Level Status Signal circuit above a calibrated value.

Scheme 497

Scheme 498

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS Using the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Go to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) and perform the appropriate diagnostic procedure. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) Using the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. Using the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out or corroded terminals and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W538) FUEL LEVEL STATUS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W538) Fuel Level Status Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W538) FUEL LEVEL STATUS SIGNAL Turn the ignition off. Disconnect VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W538) Fuel Level Status Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W538) Fuel Level Status Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSIS AND TESTING»(ref-481512-S25438739312012062200000) and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W538) FUEL LEVEL STATUS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W538) Fuel Level Status Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the (W538) Fuel Level Status Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires or damaged connectors and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated and repair any obvious problems. Is DTC P1463-FUEL LEVEL OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

Scheme 499

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Vehicle Speed Signal circuit below a calibrated value.

Scheme 500

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Go to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) and perform the appropriate diagnostic procedure. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W526) VEHICLE SPEED SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W526) Vehicle Speed Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W526) THE VEHICLE SPEED SIGNAL Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W526) Vehicle Speed Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W526) Vehicle Speed Signal circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren/controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P1504-VEHICLE SPEED OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Vehicle Speed Signal circuit above a calibrated value.

Scheme 501

Scheme 502

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Go to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) and perform the appropriate diagnostic procedure. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out or corroded terminals and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W526) VEHICLE SPEED SIGNAL CIRCUIT FOR A SHORT TO POWER Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W526) Vehicle Speed Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W526) VEHICLE SPEED SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W526) Vehicle Speed Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W526) Vehicle Speed Signal circuit for a short to power. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W526) VEHICLE SPEED SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W526) Vehicle Speed Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the (W526) Vehicle Speed Signal for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires or damaged connectors and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated and repair any obvious problems. Is DTC P1505-VEHICLE SPEED OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

Scheme 503

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Malfunction Indicator Signal circuit below a calibrated value.

Scheme 504

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W540) MALFUNCTION INDICATOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W540) Malfunction Indicator Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W540) MALFUNCTION INDICATOR SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W540) Malfunction Indicator Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W540) Malfunction Indicator Signal circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light/siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P164A-MIL OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

P164B-MIL OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Malfunction Indicator Signal circuit above a calibrated value.

Scheme 505

Scheme 506

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W540) MALFUNCTION INDICATOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W540) Malfunction Indicator Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W540) MALFUNCTION INDICATOR SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W540) Malfunction Indicator Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W540) Malfunction Indicator Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W540) MALFUNCTION INDICATOR SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W540) Malfunction Indicator Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W540) Malfunction Indicator Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P164B-MIL OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

P170A-PARK/NEUTRAL OUTPUT CIRCUIT LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the P/N Switch Sense circuit below a calibrated value.

Scheme 507

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W514) P/N SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W514) P/N Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W514) P/N SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W514) P/N Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W514) P/N Switch Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light/siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P170A-PARK/NEUTRAL OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

P170B-PARK/NEUTRAL OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the P/N Switch Sense circuit above a calibrated value.

Scheme 508

Scheme 509

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W514) P/N SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W514) P/N Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W514) P/N SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W514) P/N Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W514) P/N Switch Sense circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W514) PARK/NEUTRAL OUTPUT CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W514) P/N Switch Sense circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W514) P/N Switch Sense circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P170B-PARK/NEUTRAL OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

P170C-ENGINE RPM OUTPUT CIRCUIT LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Engine Running Status Signal circuit below a calibrated value.

Scheme 510

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W522) ENGINE RUNNING STATUS SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W522) Engine Running Status Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W522) ENGINE RUNNING STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W522) Engine Running Status Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W522) Engine RPM Output circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P170C-ENGINE RPM OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

P170D-ENGINE RPM OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Engine Running Status Signal above a calibrated value.

Scheme 511

Scheme 512

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W522) ENGINE RUNNING STATUS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W522) Engine Running Status Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W522) ENGINE RUNNING STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W522) Engine Running Status Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W522) Engine Running Status Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W522) ENGINE RUNNING STATUS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W522) Engine Running Status Signal circuit between the PTIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W522) Engine Running Status Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC P170D-ENGINE RPM OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Brake Lamp Switch Sense circuit below a calibrated value.

Scheme 513

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Go to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) and perform the appropriate diagnostic procedure. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W512) BRAKE LAMP SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C2 harness connector. Measure the resistance of the (W512) Brake Lamp Switch Sense circuit between ground and the VSIM C2 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W512) BRAKE LAMP SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W512) Brake Lamp Switch Sense circuit between ground and the VSIM C2 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W512) Brake Lamp Switch Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light/siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC C1088-BRAKE LAMP SWITCH OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «MODULE, VEHICLE SYSTEM INTERFACE, REMOVAL»(ref-481399-S29219052612012062200000) . Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Brake Lamp Switch Sense circuit above a calibrated value.

Scheme 514

Scheme 515

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Go to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) and perform the appropriate diagnostic procedure. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W512) BRAKE LAMP SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W512) Brake Lamp Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W512) BRAKE LAMP SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W512) Brake Lamp Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W512) Brake Lamp Switch Sense circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W512) BRAKE LAMP SWITCH SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W512) Brake Lamp Switch Sense circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W512) Brake Lamp Switch Sense circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC C1089-BRAKE LAMP OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «MODULE, VEHICLE SYSTEM INTERFACE, REMOVAL»(ref-481399-S29219052612012062200000) . Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Cluster Dimmer Switch Sense circuit below a calibrated value.

Scheme 516

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W521) CLUSTER DIMMER SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C2 harness connector. Measure the resistance of the (W521) Cluster Dimmer Switch circuit between ground and the VSIM C2 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W521) CLUSTER DIMMER SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W521) Cluster Dimmer Switch circuit between ground and the VSIM 22 way harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W521) Cluster Dimmer Switch circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is DTC B1693-ACCESSORY DIMMING CONTROL CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «MODULE, VEHICLE SYSTEM INTERFACE, REMOVAL»(ref-481399-S29219052612012062200000) . Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Cluster Dimmer Switch Sense circuit below a calibrated value.

Scheme 517

Scheme 518

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W521) CLUSTER DIMMER SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C2 harness connector. Turn the ignition on. Measure the voltage of the (W521) Cluster Dimmer Switch Sense circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W521) CLUSTER DIMMER SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W521) Cluster Dimmer Switch Sense circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Repair the (W521) Cluster Dimmer Switch Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W521) CLUSTER DIMMER SWITCH SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way connector. Measure the resistance of the (W521) Cluster Dimmer Switch Sense circuit between the VSIM 24 way and the VSIM C2 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W521) Cluster Dimmer Switch Sense circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B1694-ACCESSORY DIMMING CONTROL CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B17CF-EMERGENCY FLASHING LAMP REQUEST 1 CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Front Flashing Lights Signal circuit above a calibrated value.

Scheme 519

Scheme 520

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W500) FRONT FLASHING LIGHTS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W500) Front Flashing Lights Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W500) FRONT FLASHING LIGHTS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W500) Front Flashing Lights Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W500) Front Flashing Lights Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) the BODY VERIFICATION TEST.
5. CHECK THE (W500) FRONT FLASHING LIGHTS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W500) Front Flashing Lights Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W500) Front Flashing Lights Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B17CF-EMERGENCY FLASHING LAMP REQUEST 1 CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B17D2-EMERGENCY FLASHING LAMP REQUEST 2 CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Rear Flashing Lights Signal circuit above a calibrated value.

Scheme 521

Scheme 522

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W501) REAR FLASHING LIGHTS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W501) Rear Flashing Lights Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W501) REAR FLASHING LIGHTS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W501) Rear Flashing Lights Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W501) Rear Flashing Lights Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W501) REAR FLASHING LIGHTS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W501) Rear Flashing Lights Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W501) Rear Flashing Lights Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B17D2-EMERGENCY FLASHING LAMP REQUEST 2 CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B17D4-HEADLAMP STATUS OUTPUT CIRCUIT LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Headlamp Switch Sense circuit below a calibrated value.

Scheme 523

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W516) HEADLAMP SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W516) Headlamp Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W516) HEADLAMP SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W516) Headlamp Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W516) Headlamp Switch Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B17D4-HEADLAMP STATUS OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal.

B17D5-HEADLAMP STATUS OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Headlamp Switch Sense circuit above a calibrated value.

Scheme 524

Scheme 525

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W516) HEADLAMP SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C2 harness connector. Turn the ignition on. Measure the voltage of the (W516) Headlamp Switch Sense circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W516) HEADLAMP SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W516) Headlamp Switch Sense circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Repair the (W516) Headlamp Switch Sense circuit for a short to power. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W516) HEADLAMP SWITCH SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W516) Headlamp Switch Sense circuit between the VSIM 24 way and the VSIM C2 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W516) Headlamp Switch Sense circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is P17D5-HEADLAMP STATUS OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B19B4-DRIVER DOOR AJAR OUTPUT CIRCUIT LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Driver Door Ajar Switch Sense circuit below a calibrated value.

Scheme 526

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W523) DRIVER DOOR AJAR SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W523) Driver Door Ajar Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W523) DRIVER DOOR AJAR SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W523) Driver Door Ajar Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W523) Driver Door Ajar Switch Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B19B4-DRIVER DOOR AJAR OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal.

B19B5-DRIVER DOOR AJAR OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Driver Door Ajar Switch Sense circuit above a calibrated value.

Scheme 527

Scheme 528

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W523) DRIVER DOOR AJAR SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W523) Driver Door Ajar Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W523) DRIVER DOOR AJAR SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W523) Driver Door Ajar Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W523) Driver Door Ajar Switch Sense circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W523) DRIVER DOOR AJAR SWITCH SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W523) Driver Door Ajar Switch Sense circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W523) Driver Door Ajar Switch Sense circuit for an open or high resistance.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is P19B5-DRIVER DOOR AJAR OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B1A5B-PANIC ALARM MUTE REQUEST CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Security Alarm Mute Signal circuit above a calibrated value.

Scheme 529

Scheme 530

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W537) SECURITY ALARM MUTE SIGNAL CIRCUIT FOR A SHORT TO POWER Turn the ignition off. Disconnect the VSIM C2 harness connector. Turn the ignition on. Measure the voltage of the (W537) Security Alarm Mute Signal circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W537) SECURITY ALARM MUTE SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W537) Security Alarm Mute Signal circuit between ground and the PTIM C2 harness connector. Is there any voltage present? Yes Repair the (W537) Security Alarm Mute Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W537) SECURITY ALARM MUTE SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W537) Security Alarm Mute Signal circuit between the VSIM 24 way and the VSIM C2 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W537) Security Alarm Mute Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is P1A5B-PANIC ALARM MUTE REQUEST CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B1A5D-PANIC ALARM ACTIVATION OUTPUT CIRCUIT LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Security Alarm On Signal circuit below a calibrated value.

Scheme 531

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W515) SECURITY ALARM ON SIGNAL OUTPUT CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W515) Security Alarm On Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W515) SECURITY ALARM ON SIGNAL OUTPUT CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W515) Security Alarm On Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W515) Security Alarm On Signal circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B1A5D-PANIC ALARM ACTIVATION OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal.

B1A5E-PANIC ALARM ACTIVATION STATUS CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Security Alarm On Signal circuit above a calibrated value.

Scheme 532

Scheme 533

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W515) SECURITY ALARM ON SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W515) Security Alarm On Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W515) SECURITY ALARM ON SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W515) Security Alarm On Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W515) Security Alarm On Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W515) SECURITY ALARM ON SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W515) Security Alarm On Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the (W515) Security Alarm On Signal circuit for an open or high resistance.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is P1A5E-PANIC ALARM ACTIVATION STATUS CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B1CC1-DEPLOYMENT NOTIFICATION OUTPUT CIRCUIT LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Front or Side Airbag Status Signal circuits below a calibrated value.

Scheme 534

Scheme 535

Scheme 536

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W518) FRONT AIRBAG STATUS SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W518) Front Airbag Status Signal circuit between ground and the VSIM C2 harness connector. Is the resistance below 5.0 ohms? Yes If the vehicle is equipped with a side airbag, Go To 4 . Otherwise, Go To 5 . No Go To 7 .
4. CHECK THE (W517) SIDE AIRBAG DEPLOYMENT NOTIFICATION OUTPUT CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W517) Side Airbag Deployment Notification Output circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go to 7 . No Go To 6 .
5. ISOLATE THE SHORT TO GROUND IN THE (W518) FRONT AIRBAG STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W518) Front Airbag Status Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W518) Front Airbag Status Signal circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. ISOLATE THE SHORT TO GROUND IN THE (W517) SIDE AIRBAG STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W517) Side Airbag Status Signal circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W517) Side Airbag Status Signal circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
7. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B1CC1-DEPLOYMENT NOTIFICATION OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal.

B1CC2-DEPLOYMENT NOTIFICATION OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Front or Side Airbag Status Signal circuits above a calibrated value.

Scheme 537

Scheme 538

Scheme 539

Scheme 540

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W518) FRONT AIRBAG STATUS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C2 harness connector. Turn the ignition on. Measure the voltage of the (W518) Front Airbag Status Signal circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Go To 5 . No If equipped with a side airbag, Go To 4 . Otherwise, Go To 8 .
4. CHECK THE (W517) SIDE AIRBAG STATUS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C2 harness connector. Turn the ignition on. Measure the voltage of the (W517) Side Airbag Status Signal circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Go To 6 . No Go To 7 .
5. ISOLATE THE SHORT TO VOLTAGE IN THE (W518) FRONT AIRBAG STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W518) Front Airbag Status Signal circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Repair the (W518) Front Airbag Status Signal circuit for a short to power. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
6. ISOLATE THE SHORT TO VOLTAGE IN THE (W517) SIDE AIRBAG STATUS SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W517) Side Airbag Status Signal circuit between ground and the VSIM C2 harness connector. Is there any voltage present? Yes Repair the (W517) Side Airbag Deployment Notification Output circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
7. CHECK THE (W517) SIDE AIRBAG STATUS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W517) Side Airbag Status Signal circuit between the VSIM 24 way and the VSIM C2 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 9 . No Repair the (W517) Side Airbag Status Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
8. CHECK THE (W518) FRONT AIRBAG STATUS SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W518) Front Airbag Status Signal circuit between the VSIM 24 way and the VSIM C2 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 9 . No Repair the (W518) Front Airbag Status Signal circuit for an open or high resistance. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
9. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B1CC2-DEPLOYMENT NOTIFICATION OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B210D-BATTERY VOLTAGE LOW

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Fused (B+) input voltage below a calibrated value.

Scheme 541

1. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 2 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
2. VERIFY OPERATION OF THE VEHICLE CHARGING SYSTEM NOTE: Repair any PCM charging/cranking DTCs before proceeding with this test. NOTE: Verify the battery is fully charged. Are any charging system DTCs present? Yes Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 3 .
3. CHECK (A913) FUSED (B+) CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (A913) Fused (B+) circuit in the VSIM harness connector. Is the voltage above 10.0 volts? Yes Go To 4 . No Repair the (A913) Fused (B+) circuit for an open. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
4. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B210D-BATTERY VOLTAGE LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B210E-BATTERY VOLTAGE HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Fused (B+) input voltage above a calibrated value.

B237C-DATA COMMUNICATION RADIO INPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Police Radio Input Signal circuit above a calibrated value.

Scheme 542

Scheme 543

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W511) POLICE RADIO INPUT SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W511) Police Radio Input Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W511) POLICE RADIO INPUT SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W511) Police Radio Input Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W511) Police Radio Input Signal circuit for a short to power. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W511) POLICE RADIO INPUT SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W511) Police Radio Input Signal circuit between the VSIM 24 way and the VSIM C1 harness connectors. Is the resistance below 5.0 Ohms? Yes Go To 6 . No Repair the (W511) Police Radio Input Signal circuit for an open or high resistance.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B237C-DATA COMMUNICATION RADIO INPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

B237F-HORN MUTE REQUEST CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Horn Mute Signal circuit above a calibrated value.

Scheme 544

Scheme 545

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W536) HORN MUTE REQUEST SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W536) Horn Mute Request Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W536) HORN MUTE REQUEST SIGNAL CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W536) Horn Mute Request Signal circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W536) Horn Mute Request Signal circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W536) HORN MUTE REQUEST SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W536) Horn Mute Request Signal circuit between the VSIM 24 way and the PTIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W536) Horn Mute Request Signal circuit for an open or high resistance.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B237F-HORN MUTE REQUEST CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The VSIM has detected the Driver Seat Belt Switch Sense circuit below a calibrated value.

Scheme 546

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for TIPM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W539) DRIVER SEAT BELT SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W539) Driver Seat Belt Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W539) DRIVER SEAT BELT SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W539) Driver Seat Belt Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W539) Driver Seat Belt Switch Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B2381-DRIVER SEAT BELT OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Driver Seat Belt Switch Sense circuit above a calibrated value.

Scheme 547

Scheme 548

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W539) DRIVER SEAT BELT SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W539) Driver Seat Belt Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W539) DRIVER SEAT BELT SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W539) Driver Seat Belt Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W539) Driver Seat Belt Switch Sense circuit for a short to power. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W539) DRIVER SEAT BELT SWITCH SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W539) Driver Seat Belt Switch Sense circuit between the VSIM 24 way and the PTIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W539) Driver Seat Belt Switch Sense circuit for an open or high resistance.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B2382-DRIVER SEAT BELT OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Horn Switch Sense circuit below a calibrated value.

Scheme 549

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W513) HORN SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the VSIM C1 harness connector. Measure the resistance of the (W513) Horn Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO GROUND IN THE (W513) HORN SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W513) Horn Switch Sense circuit between ground and the VSIM C1 harness connector. Is the resistance below 5.0 ohms? Yes Repair the (W515) Driver Seat Belt Sense circuit for a short to ground. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B2384-HORN SWITCH OUTPUT CIRCUIT LOW still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Horn Switch Sense circuit above a calibrated value.

Scheme 550

Scheme 551

1. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. Record all communication and low system voltage DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Diagnose and repair the DTC. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Go To 2 .
2. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) With the scan tool, read the active DTCs. Erase the DTCs. Turn the ignition off, wait 10 seconds, then turn the ignition on. With the scan tool, read the active DTCs. Does the scan tool display this DTC as active? Yes Go To 3 . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
3. CHECK THE (W513) HORN SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the VSIM C1 harness connector. Turn the ignition on. Measure the voltage of the (W513) Horn Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Go To 4 . No Go To 5 .
4. ISOLATE THE SHORT TO VOLTAGE IN THE (W513) HORN SWITCH SENSE CIRCUIT Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Turn the ignition on. Measure the voltage of the (W513) Horn Switch Sense circuit between ground and the VSIM C1 harness connector. Is there any voltage present? Yes Repair the (W513) Horn Switch Sense circuit for a short to voltage. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Refer to «DIAGNOSTIC CODE INDEX»(ref-481512-S09510354572012062200000) for the aftermarket light/siren controller, and repair or replace the aftermarket light siren controller in accordance with the manufacturer's Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.
5. CHECK THE (W513) HORN SWITCH SENSE CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the VSIM 24 way harness connector (aftermarket light/siren controller side). Measure the resistance of the (W513) Horn Switch Sense circuit between the VSIM 24 way and the PTIM C1 harness connectors. Is the resistance below 5.0 ohms? Yes Go To 6 . No Repair the (W513) Horn Switch Sense circuit for an open or high resistance.
6. CHECK THE VSIM Turn the ignition off. Disconnect all VSIM and aftermarket light/siren controller harness connectors. Check for damaged or corroded pins, pinched wires, or damaged connectors, and repair any obvious problems. Connect all VSIM and aftermarket light/siren controller harness connectors. Turn the ignition on. With the scan tool monitor active codes as you work through the following step. Wiggle the wiring harness and connectors of the VSIM and aftermarket light/siren controller. If only stored codes return continue the test until the problem area has been isolated, and repair any obvious problems. Is B2385-HORN SWITCH OUTPUT CIRCUIT HIGH still displayed? Yes Replace the VSIM in accordance with the Service Information. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST. No Repair is complete. The problem may have been caused by a loose or corroded terminal. Refer to «STANDARD PROCEDURE»(ref-481468-S16015622592012062200000) and perform the BODY VERIFICATION TEST.

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Front or Side Airbag Status Signal circuits below a calibrated value.

B271F-FRONTAL IMPACT OUTPUT CIRCUIT HIGH

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

With the ignition switch on.

The Vehicle System Integration Module (VSIM) has detected the Front or Side Airbag Status Signal circuits above a calibrated value.

Continuously when the ignition is on.

The battery voltage between 10.0 and 16.0 Volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Body Control Module (BCM) for approximately two to five seconds.

Continuously when the ignition is on.

The battery voltage between 10.0 and 16.0 Volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Telematics Gateway for approximately two to five seconds.

Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Instrument Cluster (IC) for approximately two to five seconds.

Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Bus messages not received from the HVAC Control Module for approximately two to five seconds.

With the ignition on.

Battery voltage between 10 and 16 volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Driver Door Module for approximately two to five seconds.

With the ignition on.

Battery voltage between 10 and 16 volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Passenger Door Module for approximately two to five seconds.

With the ignition on.

Battery voltage between 10 and 16 volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Heated Seat Control Module for approximately two to five seconds.

With the ignition on.

Battery voltage between 10 and 16 volts.

Body Control Module (BCM) is configured correctly.

Bus messages not received from the Heated Seat Control Module for approximately two to five seconds.